Featuring an all-time popular favorite among the dinosaurs, Selsam combines 25 black-and-white photos with approximately that many short pages of text for a presentation of some very familiar material: how Tyrannosaurus bones were discovered (the first set in Montana in 1902, the second six years later) and unearthed, how they were assembled and mounted at the American Museum of Natural History in New York, how scientists figured out from the bones and teeth that Tyrannosaurus was a bipedal carnivore. She fills in with a rundown of other dinosaurs by way of surveying Rex's likely prey, and ends with references to some of the remaining dinosaur mysteries and a few of the newer theories. (Were they warmblooded? Did a supernova kill them off?) Basically a reshuffling job, but a likely attraction nevertheless.